How to remotely debug Rails in Apache + Passenger + RubyMine

I've been struggling with this issue since a week ago, when I started working for a startup as a Ruby on Rails developer and bought a license for RubyMine 4.5.

Today I've come up with a working solution that I've published in my blog: http://noteslog.com/post/how-to-remotely-debug-rails-in-apache-passenger-rubymine/

Hope this helps others.